Can't help with 'Plastic Paddy', I'm afraid, but here are the words to 'He's Nobody's Moggy Now'

Somebody's moggy by the side of the road.
Somebody's moggy who forgot their highway code.
Someone's favourite feline who ran right out of luck
When he ran onto the road and tried to
Argue with a truck.
Yesterday he purred and played in his pussy paradise.
Decapitating tweety birds and masticating mice.
Now he's just six pounds of raw mincemeat
That don't smell very nice.
He's nobody's moggy now.

All you who love your pussy, please try and keep him in.
Don't let him argue with a truck for the truck is sure to win.
And upon the busy road don't let him play or frolic.
If you do, I'm warning you ...
It could be cat-astrophic.
If he plays on the roadway, I'm afraid that will be that.
He'll give one last despairing miaow, and a sort of squelchy splat.
And your pussy will be slightly dead
And very, very flat.
He's nobody's moggy,
Just red, and squashed and soggy,
He's nobody's moggy now. Miaow.